Vulcan Materials

Vulcan Materials produces construction aggregates, including stone, sand and gravel, which go into most types of public and private construction. Its aggregates are also used to make asphalt mix and ready-mixed concrete. The company describes itself as the nation's largest producer of construction aggregates.

Vulcan focuses on metropolitan markets in the United States that are expected to grow in population, households and jobs. Customers can request product sales through the company, and its website has a facilities locator for finding a nearby site. The headquarters is in Birmingham, Alabama.